Komatsu WA800-3E0 Operation & Maintenance Manual

WA800

-3E0

WA900

-3E0

SERIAL NUMBER

WA800-3E0 - 70001

and up

WA900-3E0 - 60001

and up

WHEEL LOADER

Unsafe use of this machine may cause serious injury or

death. Operators and maintenance personnel must read

this manual before operating or maintaining this

machine. This manual should be kept inside the cab for

reference and periodically reviewed by all personnel who

will come into contact with the machine.

Operation &

Maintenance Manual

EEAM026100

WARNING

FOREWORD

11

FOREWORD FOREWORD

1-2

FOREWORD 1

This manual provides rules and guidelines which will help you use this machine safely and effectively. The pre-

cautions in this manual must be followed at all times when performing operation and maintenance. Most accidents

are caused by the failure to follow fundamental safety rules for the operation and maintenance of machines. Acci-

dents can be prevented by knowing beforehand conditions that may cause a hazard when performing operation

and maintenance.

WARNING

Operators and maintenance personnel must always do as follows before beginning operation or mainte-

nance.

Always be sure to read and understand this manual thoroughly before performing operation and mainte-

nance.

Read the safety messages given in this manual and the safety labels affixed to the machine thoroughly

and be sure that you understand them fully.

Keep this manual in the storage location for the operation and maintenance manual given below, and have

all personnel read it periodically.

If this manual has been lost or has become dirty and cannot be read, request a replacement manual imme-

diately from Komatsu or your Komatsu distributor.

If you sell the machine, be sure to give this manual to the new owners together with the machine.

Komatsu delivers machines that comply with all applicable regulations and standards of the country to

which it has been shipped. If this machine has been purchased in another country or purchased from

someone in another country, it may lack certain safety devices and specifications that are necessary for

use in your country. If there is any question about whether your product complies with the applicable

standards and regulations of your country, consult Komatsu or your Komatsu distributor before operating

the machine.

Storage location for the Operation and Maintenance Manual:

Pocket (1) at rear of operator's seat

FOREWORD SAFETY INFORMATION

1-3

SAFETY INFORMATION 1

To enable you to use this machine safely, safety precautions and labels are given in this manual and affixed to the

machine to give explanations of situations involving potential hazards and of the methods of avoiding such situa-

tions.

Signal words

The following signal words are used to inform you that there is a potential hazardous situation that may lead to per-

sonal injury or damage.

In this manual and on machine labels, the following signal words are used to express the potential level of hazard.

Example of safety message using signal word

WARNING

When standing up from the operator's seat, always place the work equipment lock lever in the LOCK posi-

tion.

If you accidentally touch the work equipment control levers when they are not locked, this may cause a

serious injury or death.

Other signal words

In addition to the above, the following signal words are used to indicate precautions that should be followed to pro-

tect the machine or to give information that is useful to know.

Indicates an imminently hazardous situation which, if not avoided, will result in death

or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death

or serious injury.

Indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury. This word is used also to alert against unsafe practices that may

cause property damage.

NOTICE This word is used for precautions that must be taken to avoid actions which could shorten

the life of the machine.

REMARKS This word is used for information that is useful to know.

DANGER

WARNING

CAUTION

SAFETY INFORMATION FOREWORD

1-4

qSafety labels

Safety labels are affixed to the machine to inform the operator or maintenance worker on the spot when carrying

out operation or maintenance of the machine that may involve hazard.

This machine uses “Safety labels using words“ and “Safety labels using pictograms“ to indicate safety procedures.

Example of safety label using words

Safety labels using pictogram

Safety pictograms use a picture to express a level of hazard-

ous condition equivalent to the signal word. These safety picto-

grams use pictures in order to let the operator or maintenance

worker understand the level and type of hazardous condition at

all times. Safety pictograms show the type of hazardous condi-

tion at the top or left side, and the method of avoiding the haz-

ardous condition at the bottom or right side. In addition, the

type of hazardous condition is displayed inside a triangle and

the method of avoiding the hazardous condition is shown

inside a circle.

Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance.

Therefore, the safety messages in this manual and on the machine may not include all possible safety precau-

tions.

If any procedures or actions not specifically recommended or allowed in this manual are used, it is your responsi-

bility to take the necessary steps to ensure safety.

In no event should you engage in prohibited uses or actions described in this manual.

The explanations, values, and illustrations in this manual were prepared based on the latest information available

at that time. Continuing improvements in the design of this machine can lead to changes in detail which may not

be reflected in this manual.

In addition, the illustrations in this manual may show the machine with optional equipment installed.

If there are any unclear points or you have any questions, please contact your Komatsu distributor.

The numbers in circles in the illustrations correspond to the numbers in ( ) in the text. (For example: 1 -> (1))

Part No

FOREWORD SAFETY INFORMATION

1-5

NOISE EMISSION LEVELS 1

WA800-3E0

qSound pressure level at the operator’s station, measured

according to ISO6394 (Static test method, simulated work-

ing cycle).

WA900-3E0

qSound pressure level at the operator’s station, measured

according to ISO6394 (Static test method, simulated work-

ing cycle).

SAFETY INFORMATION FOREWORD

1-6

VIBRATION LEVELS 1

When used for its intended purpose, levels of vibration for the earth-moving machine transmitted from the opera-

tor’s seat are lower than or equal to the tested vibrations for the relative machinery class in compliance with ISO

7096.

WA800-3E0 : the actual acceleration value for the hands and arms is less than or equal to 2.5 m/s².

The actual acceleration value for the body is less than or equal to 0.5m/s².

WA900-3E0 : the actual acceleration value for the hands and arms is less than or equal to 2.5 m/s².

The actual acceleration value for the body is less than or equal to 0.5m/s².

These values were determined using a representative machine and measured during the typical operating condi-

tion indicated below according to the measurement procedures that are defined in the standards ISO 2631/1 and

ISO 5349.

Operating condition:

(WHEEL LOADER:) V-shape loading

Guide to Reduce Vibration Levels on Machine

The following guides can help an operator of this machine to reduce the whole body vibration levels:

1. Use the correct equipment and attachments.

2. Maintain the machine according to this manual

qTire pressures (for wheeled machines), tension of crawler (for crawler machines)

qBrake and steering systems

qControls, hydraulic system and linkages

3. Keep the terrain where the machine is working and traveling in good condition

qRemove any large rocks or obstacles

qFill any ditches and holes

qSite manager should provide machine operators with machine and schedule time to maintain terrain con-

ditions

4. Use a seat that meets ISO 7096 and keep the seat maintained and adjusted

qAdjust the seat and suspension for the weight and size of the operator

qWear seat belt

qInspect and maintain the seat suspension and adjustment mechanisms

5. Steer, brake, accelerate, shift gears (for wheeled machines), and move the attachment levers and pedals

slowly so that the machine moves smoothly

6. Adjust the machine speed and travel path to minimize the vibration level

qWhen pushing with bucket or blade, avoid sudden loading; load gradually

qDrive around obstacles and rough terrain conditions

qSlow down when it is necessary to go over rough terrain

qMake the curve radius of traveling path as large as possible

qTravel at low speed when traveling around sharp curves

FOREWORD SAFETY INFORMATION

1-7

7. Minimize vibrations for long work cycle or long distance traveling

qReduce speed to prevent bounce

qTransport machines long distances between worksites

8. The following guidelines can be effective to minimize risks of low back pain

qOperate the machine only when you are in good health.

qProvide breaks to reduce long periods of sitting in the same posture

qDo not jump down from the cab or machine

qDo not repeatedly handle and lift loads.

INTRODUCTION FOREWORD

1-8

INTRODUCTION 1

This Komatsu machine is designed to be used mainly for the following work:

qDigging work

qSmoothing

qPushing work

qLoading work

For details of the operating procedure, see “WORK POSSIBLE USING WHEEL LOADER (3-104)“.

FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE 1

1. Bucket

In this manual, the directions of the machine (front, rear, left, right) are determined according to the view from the

operator's seat in the direction of travel (front) of the machine.

1

A

B

CD

(A) Front (C) Left

(B) Rear (D) Right

FOREWORD INTRODUCTION

1-9

VISIBILITY FROM OPERATOR'S SEAT 1

The visibility standards (ISO 5006) for this machine require a view shown in the diagram below.

VISIBILITY IN IMMEDIATE AREA 1

The visibility of this machine in the area 1 m from the outside surface of the machine at a height of 1.5 m is shown

in the diagram below. The hatched area (A) shows the area where the view is blocked by part of the machine when

mirrors or other aids to visibility are installed as standard. Please be fully aware that there are places that cannot

be seen when operating the machine.

WA800-3E0

WA900-3E0

INTRODUCTION FOREWORD

1-10

12-M RADIUS VISIBILITY 1

The visibility at a radius of 12 m from the machine is as shown in the diagram below. The hatched areas (B) show

the areas where the view is blocked when mirrors or other aids to visibility are installed as standard. Please be

fully aware that there are places that cannot be seen when operating the machine.

WA800-3E0

WA900-3E0

FOREWORD NECESSARY INFORMATION

1-11

NECESSARY INFORMATION 1

When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following

items.

PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE 1

On the center right of the front frame.

The design of the nameplate differs according to the territory.

EPA REGULATIONS, ENGINE NUMBER PLATE 1

On the upper left of the cylinder block, when seen from the fan side.

EPA: Environmental Protection Agency, U.S.A.

NECESSARY INFORMATION FOREWORD

1-12

POSITION OF SERVICE METER 1

On the lower right of maintenance monitor.

TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR 1

Machine serial No.

Engine serial No.

Product Identification Number

Manufacturers name:

Address:

KOMATSU LTD.

3-6 Akasaka

Minato-ku, 101 Tokyo

Japan

Distributor

Address

Phone

Service personnel for your

machine:

FOREWORD NECESSARY INFORMATION

1-13

MACHINE SERIAL NUMBER PLATE

Model

Serial Number

Manufacturing year

Weight

Engine power

Product Identification Number

Manufacturer

CONTENTS

1-14

CONTENTS

FOREWORD

FOREWORD.........................................................................................................................................................1-2

SAFETY INFORMATION......................................................................................................................................1-3

NOISE EMISSION LEVELS........................................................................................................................1-5

VIBRATION LEVELS..................................................................................................................................1-6

INTRODUCTION...................................................................................................................................................1-8

FRONT/REAR, LEFT/RIGHT DIRECTIONS OF MACHINE.......................................................................1-8

VISIBILITY FROM OPERATOR'S SEAT....................................................................................................1-9

VISIBILITY IN IMMEDIATE AREA.....................................................................................................1-9

12-M RADIUS VISIBILITY ...............................................................................................................1-10

NECESSARY INFORMATION ...........................................................................................................................1-11

PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE......................................1-11

EPA REGULATIONS, ENGINE NUMBER PLATE ...................................................................................1-11

POSITION OF SERVICE METER ............................................................................................................1-12

TABLE TO ENTER SERIAL NO. AND DISTRIBUTOR ............................................................................1-12

MACHINE SERIAL NUMBER PLATE.......................................................................................................1-13

SAFETY

SAFETY................................................................................................................................................................2-2

SAFETY LABELS.................................................................................................................................................2-4

LOCATION OF SAFETY LABELS..............................................................................................................2-5

SAFETY LABELS .......................................................................................................................................2-6

GENERAL PRECAUTIONS ...............................................................................................................................2-11

PRECAUTIONS FOR OPERATION...................................................................................................................2-21

STARTING ENGINE.................................................................................................................................2-21

OPERATION.............................................................................................................................................2-22

TRANSPORTATION.................................................................................................................................2-28

BATTERY .................................................................................................................................................2-29

TOWING ...................................................................................................................................................2-31

PRECAUTIONS FOR MAINTENANCE..............................................................................................................2-32

PRECAUTIONS WITH TIRES ............................................................................................................................2-40

OPERATION

GENERAL VIEW ..................................................................................................................................................3-2

CONTENTS

1-15

GENERAL VIEW OF MACHINE................................................................................................................. 3-2

GENERAL VIEW OF CONTROLS AND GAUGES..................................................................................... 3-3

EXPLANATION OF COMPONENTS.................................................................................................................... 3-6

MACHINE MONITOR ................................................................................................................................. 3-6

MONITOR SYSTEM.......................................................................................................................... 3-6

WARNING DISPLAY......................................................................................................................... 3-9

METER DISPLAY PORTION...........................................................................................................3-15

SWITCHES............................................................................................................................................... 3-22

CONTROL LEVERS, PEDALS................................................................................................................. 3-36

MAIN MONITOR TILT LEVER.................................................................................................................. 3-42

CAP WITH LOCK...................................................................................................................................... 3-43

METHOD OF OPENING AND CLOSING CAP WITH LOCK .......................................................... 3-43

FRAME LOCK BAR.................................................................................................................................. 3-44

TOWING PIN............................................................................................................................................ 3-45

ENGINE SHUT-DOWN SWITCH.............................................................................................................. 3-45

FUEL STOP LEVER................................................................................................................................. 3-45

BACKUP ALARM...................................................................................................................................... 3-45

CAB DOOR OPEN LOCK......................................................................................................................... 3-46

HANDLING CAB WIPER.......................................................................................................................... 3-46

PREVENTING DAMAGE TO WIPER ARM BRACKET................................................................... 3-46

REPLACING CAB WIPER............................................................................................................... 3-46

DUST INDICATOR ................................................................................................................................... 3-47

FUSE ........................................................................................................................................................ 3-47

FUSE CAPACITY AND NAME OF CIRCUIT................................................................................... 3-48

CIRCUIT BREAKER................................................................................................................................. 3-49

SLOW BLOW FUSE................................................................................................................................. 3-49

LUNCH BOX TRAY .................................................................................................................................. 3-50

TOOL BOX................................................................................................................................................ 3-50

GREASE PUMP........................................................................................................................................ 3-50

LOCATION OF FIRE EXTINGUISHER .................................................................................................... 3-51

POWER OUTLET..................................................................................................................................... 3-51

AM/FM RADIO-CASSETTE STEREO...................................................................................................... 3-52

EXPLANATION OF COMPONENTS............................................................................................... 3-52

METHOD OF OPERATION.............................................................................................................3-57

PRECAUTIONS WHEN USING ...................................................................................................... 3-59

AIR CONDITIONER.................................................................................................................................. 3-60

GENERAL LOCATIONS AND FUNCTION OF CONTROL PANEL................................................ 3-60

METHOD OF OPERATION.............................................................................................................3-63

USE AIR CONDITIONER WITH CARE........................................................................................... 3-64

AIR CONDITIONER MAINTENANCE ............................................................................................. 3-64

COOL BOX...................................................................................................................................... 3-64

HANDLING WIRELESS............................................................................................................................ 3-65

OPERATION....................................................................................................................................................... 3-66

CHECK BEFORE STARTING ENGINE, ADJUST.................................................................................... 3-66

WALK-AROUND CHECK................................................................................................................ 3-66

CHECK BEFORE STARTING......................................................................................................... 3-69

CONTENTS

1-16

ADJUSTMENT.................................................................................................................................3-76

OPERATIONS AND CHECKS BEFORE STARTING ENGINE.......................................................3-81

STARTING ENGINE.................................................................................................................................3-83

AUTOMATIC WARMING-UP OPERATION.....................................................................................3-85

OPERATIONS AND CHECKS AFTER STARTING ENGINE...................................................................3-86

BREAKING-IN THE MACHINE........................................................................................................3-86

NORMAL OPERATION ...................................................................................................................3-86

STOPPING ENGINE.................................................................................................................................3-88

CHECK AFTER STOPPING ENGINE ......................................................................................................3-88

MOVING THE MACHINE (DIRECTIONAL, SPEED), STOPPING THE MACHINE..................................3-89

PREPARATIONS FOR MOVING MACHINE...................................................................................3-89

CHANGING GEAR SPEED.............................................................................................................3-92

CHANGING DIRECTION.................................................................................................................3-94

STOPPING THE MACHINE ............................................................................................................3-96

ADJUSTING TRANSMISSION CUT-OFF POSITION ..............................................................................q-98

TURNING..................................................................................................................................................3-99

OPERATION OF WORK EQUIPMENT ..................................................................................................3-100

REMOTE POSITIONER .........................................................................................................................3-101

WORK POSSIBLE USING WHEEL LOADER........................................................................................3-104

DIGGING OPERATIONS...............................................................................................................3-104

LEVELING OPERATIONS.............................................................................................................3-107

PUSHING OPERATION ................................................................................................................3-107

LOAD AND CARRY OPERATIONS ..............................................................................................3-107

LOADING OPERATIONS..............................................................................................................3-108

PRECAUTIONS WHEN HANDLING BLASTED ROCK.................................................................3-109

PRECAUTIONS FOR OPERATION .......................................................................................................3-121

PERMISSIBLE WATER DEPTH....................................................................................................3-121

IF WHEEL BRAKE DOES NOT WORK.........................................................................................3-121

PRECAUTIONS WHEN DRIVING UP OR DOWN SLOPES.........................................................3-121

ADJUSTING WORK EQUIPMENT POSTURE.......................................................................................3-124

ADJUSTING BUCKET POSITIONER............................................................................................3-124

BUCKET LEVEL INDICATOR .......................................................................................................3-125

REMOVAL AND INSTALLATION OF THE BUCKET .............................................................................3-125

REMOVING THE BUCKET ...........................................................................................................3-126

INSTALLING THE BUCKET..........................................................................................................3-127

PARKING MACHINE ..............................................................................................................................3-129

CHECKS AFTER COMPLETION OF OPERATION ...............................................................................3-131

LOCKING................................................................................................................................................3-131

HANDLING THE TIRES..........................................................................................................................3-132

PRECAUTIONS WHEN HANDLING TIRES..................................................................................3-132

TIRE PRESSURE..........................................................................................................................3-132

PRECAUTIONS FOR USING LOAD AND CARRY METHOD ......................................................3-134

TRANSPORTATION.........................................................................................................................................3-135

TRANSPORTATION PROCEDURE.......................................................................................................3-135

LOADING, UNLOADING WORK ............................................................................................................3-135

METHOD OF SECURING MACHINE.....................................................................................................3-135

METHOD OF LIFTING MACHINE..........................................................................................................3-137

CONTENTS

1-17

LOCATION OF LIFTING POSITION MARK.................................................................................. 3-138

WEIGHT TABLE............................................................................................................................ 3-138

LIFTING PROCEDURE................................................................................................................. 3-138

COLD WEATHER OPERATION ...................................................................................................................... 3-140

PRECAUTIONS FOR LOW TEMPERATURE........................................................................................ 3-140

FUEL AND LUBRICANTS............................................................................................................. 3-140

COOLANT ..................................................................................................................................... 3-140

BATTERY...................................................................................................................................... 3-141

PRECAUTIONS AFTER COMPLETION OF WORK.............................................................................. 3-141

AFTER COLD WEATHER...................................................................................................................... 3-142

WARMING-UP OPERATION FOR STEERING HYDRAULIC CIRCUIT IN COLD WEATHER.............. 3-142

LONG-TERM STORAGE.................................................................................................................................. 3-143

BEFORE STORAGE............................................................................................................................... 3-143

DURING STORAGE............................................................................................................................... 3-143

AFTER STORAGE.................................................................................................................................. 3-143

TROUBLESHOOTING...................................................................................................................................... 3-144

WHEN MACHINE RUNS OUT OF FUEL ............................................................................................... 3-144

METHOD OF TOWING MACHINE......................................................................................................... 3-145

WHEN ENGINE RUNS.................................................................................................................. 3-146

WHEN ENGINE DOES NOT RUN ................................................................................................ 3-146

RELEASING PARKING BRAKE.................................................................................................... 3-147

EMERGENCY TRAVEL OPERATION .......................................................................................... 3-148

IF BATTERY IS DISCHARGED.............................................................................................................. 3-148

REMOVAL AND INSTALLATION OF BATTERY .......................................................................... 3-148

PRECAUTIONS FOR CHARGING BATTERY.............................................................................. 3-149

STARTING ENGINE WITH BOOSTER CABLE............................................................................ 3-150

METHOD FOR LOWERING WORK EQUIPMENT WHEN ENGINE HAS STOPPED........................... 3-152

PRELUBE SKIP FUNCTION WHEN STARTING IN EMERGENCY ...................................................... 3-153

OTHER TROUBLE ................................................................................................................................. 3-155

ELECTRICAL SYSTEM................................................................................................................. 3-155

CHASSIS....................................................................................................................................... 3-156

ENGINE......................................................................................................................................... 3-158

RELATIONSHIP OF ELECTRONIC CONTROL SYSTEM............................................................ 3-159

MAINTENANCE

GUIDES TO MAINTENANCE...............................................................................................................................4-2

OUTLINES OF SERVICE..................................................................................................................................... 4-5

HANDLING OIL, FUEL, COOLANT, AND PERFORMING OIL CLINIC ..................................................... 4-5

OIL..................................................................................................................................................... 4-5

FUEL.................................................................................................................................................. 4-6

COOLANT AND WATER FOR DILUTION ........................................................................................ 4-6

GREASE............................................................................................................................................ 4-7

CARRYING OUT KOWA (Komatsu Oil Wear Analysis).................................................................... 4-7

CONTENTS

1-18

STORING OIL AND FUEL.................................................................................................................4-8

FILTERS............................................................................................................................................4-8

OUTLINE OF ELECTRIC SYSTEM............................................................................................................4-9

WEAR PARTS....................................................................................................................................................4-10

WEAR PARTS LIST..................................................................................................................................4-10

RECOMMENDED FUEL, COOLANT, AND LUBRICANT .................................................................................4-11

USE OF FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE.............4-12

RECOMMENDED BRANDS, RECOMMENDED QUALITY FOR PRODUCTS OTHER THAN KOMATSU

GENUINE OIL...........................................................................................................................................4-14

STANDARD TIGHTENING TORQUES FOR BOLTS AND NUTS.....................................................................4-15

TORQUE LIST..........................................................................................................................................4-15

PERIODIC REPLACEMENT OF SAFETY CRITICAL PARTS ..........................................................................4-17

SAFETY CRITICAL PARTS......................................................................................................................4-18

MAINTENANCE SCHEDULE CHART ...............................................................................................................4-19

MAINTENANCE SCHEDULE CHART......................................................................................................4-19

SERVICE PROCEDURE ....................................................................................................................................4-21

INITIAL 10 HOURS SERVICE (SERVICE FOR FIRST 50 HOURS ON NEW MACHINE).......................4-21

INITIAL 250 HOURS SERVICE................................................................................................................4-21

WHEN REQUIRED...................................................................................................................................4-22

CHECK, CLEAN, OR REPLACE AIR CLEANER ELEMENT..........................................................4-22

CLEAN INSIDE OF COOLING SYSTEM ........................................................................................4-24

CHECK TRANSMISSION OIL LEVEL, ADD OIL ............................................................................4-28

CHECK AXLE OIL LEVEL, ADD OIL...............................................................................................4-29

CLEAN AXLE CASE BREATHER ...................................................................................................4-29

CLEAN AIR CONDITIONER CONDENSER....................................................................................4-30

CHECK WINDOW WASHING FLUID LEVEL, ADD FLUID.............................................................4-30

CLEAN RADIATOR, OIL COOLER, AFTERCOOLER FINS...........................................................4-31

REPLACE BUCKET TEETH............................................................................................................4-32

LUBRICATING.................................................................................................................................4-33

CHECK AIR CONDITIONER...........................................................................................................4-34

BLEEDING AIR FROM BRAKE HYDRAULIC CIRCUIT..................................................................4-35

BLEEDING AIR FROM PPC CIRCUIT............................................................................................4-36

REPLACE SLOW BLOW FUSE ......................................................................................................4-36

BLEEDING AIR FROM HYDRAULIC TANK....................................................................................4-37

REPLACE FAN BELT, ADJUST AUTO-TENSIONER.....................................................................4-39

SELECTION AND INSPECTION OF TIRES ...................................................................................4-41

CHECK BEFORE STARTING ..................................................................................................................4-43

EVERY 50 HOURS SERVICE..................................................................................................................4-44

DRAIN WATER, SEDIMENT FROM FUEL TANK...........................................................................4-44

EVERY 100 HOURS SERVICE................................................................................................................4-45

LUBRICATING.................................................................................................................................4-45

CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL....................................................................4-47

CLEAN ELEMENT IN AIR CONDITIONER FRESH AIR FILTER....................................................4-48

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Komatsu WA800-3E0 Operation & Maintenance Manual

Komatsu WA800-3E0 Operation & Maintenance Manual

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